Ralph Wu
  • Male
  • Hong Kong
  • Hong Kong

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  • Chris Eddy
  • Harry Michopoulos
  • Ashley Belbin
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Ralph Wu's Groups

Ralph Wu's Discussions

Sending APM to near space and return?

Started this discussion. Last reply by Larry Grater Jan 1, 2014. 17 Replies

I am thinking sending APM power glider to near space by balloon and return home.  Anyone already made it?…Continue


Ralph Wu's Page

Profile Information

About Me:
I am hobbyist of high tech gadgets and IT professional.
Please tell us a bit about your UAV interest
Aerial photography and LiDAR.
Hong Kong

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Ralph Wu's Blog

MultiWii Mini with DMS2 RX module

Posted on June 4, 2013 at 12:30am 7 Comments

This is a tiny MultiWii FC integrated with 7-Channels DMS2 RX module. Weight is just 70g and it can fit into mini Quad or Hex copters

You can have more details at following link:…


Quad X FPV Frame for APM 2.0/2.5 board

Posted on February 28, 2013 at 7:16am 2 Comments

A new quad X FPV frame for APM 2.0/2.5 board.…


Low-price GPS with mount

Posted on January 31, 2013 at 12:00am 4 Comments

A nice low price uBlox GPS with case and mount for $34


Vortex radio waves could boost wireless capacity “infinitely”

Posted on December 13, 2012 at 4:00am 3 Comments

I am curious about and learning Vortex Maths of Marko Rodin and Double Torus Universe pattern and how they can apply to radio communications and I found someone already did.  Vortex radio waves could boost wireless capacity “infinitely”. Using this method to boost bandwidth of ground station and drone radio communication.



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